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[3.11] gh-102980: Add tests for pdf's display, alias and where commands (GH-102981) #103016

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Merged
merged 1 commit into from
Mar 24, 2023
Merged

[3.11] gh-102980: Add tests for pdf's display, alias and where commands (GH-102981) #103016

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150 changes: 150 additions & 0 deletions Lib/test/test_pdb.py
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Original file line number Diff line number Diff line change
Expand Up @@ -574,6 +574,156 @@ def test_pdb_whatis_command():
(Pdb) continue
"""

def test_pdb_display_command():
"""Test display command

>>> def test_function():
... a = 0
... import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
... a = 1
... a = 2
... a = 3
... a = 4

>>> with PdbTestInput([ # doctest: +ELLIPSIS
... 'display a',
... 'n',
... 'display',
... 'undisplay a',
... 'n',
... 'display a',
... 'undisplay',
... 'display a < 1',
... 'n',
... 'continue',
... ]):
... test_function()
> <doctest test.test_pdb.test_pdb_display_command[0]>(4)test_function()
-> a = 1
(Pdb) display a
display a: 0
(Pdb) n
> <doctest test.test_pdb.test_pdb_display_command[0]>(5)test_function()
-> a = 2
display a: 1 [old: 0]
(Pdb) display
Currently displaying:
a: 1
(Pdb) undisplay a
(Pdb) n
> <doctest test.test_pdb.test_pdb_display_command[0]>(6)test_function()
-> a = 3
(Pdb) display a
display a: 2
(Pdb) undisplay
(Pdb) display a < 1
display a < 1: False
(Pdb) n
> <doctest test.test_pdb.test_pdb_display_command[0]>(7)test_function()
-> a = 4
(Pdb) continue
"""

def test_pdb_alias_command():
"""Test alias command

>>> class A:
... def __init__(self):
... self.attr1 = 10
... self.attr2 = 'str'
... def method(self):
... pass

>>> def test_function():
... o = A()
... import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
... o.method()

>>> with PdbTestInput([ # doctest: +ELLIPSIS
... 'alias pi for k in %1.__dict__.keys(): print(f"%1.{k} = {%1.__dict__[k]}")',
... 'alias ps pi self',
... 'pi o',
... 's',
... 'ps',
... 'continue',
... ]):
... test_function()
> <doctest test.test_pdb.test_pdb_alias_command[1]>(4)test_function()
-> o.method()
(Pdb) alias pi for k in %1.__dict__.keys(): print(f"%1.{k} = {%1.__dict__[k]}")
(Pdb) alias ps pi self
(Pdb) pi o
o.attr1 = 10
o.attr2 = str
(Pdb) s
--Call--
> <doctest test.test_pdb.test_pdb_alias_command[0]>(5)method()
-> def method(self):
(Pdb) ps
self.attr1 = 10
self.attr2 = str
(Pdb) continue
"""

def test_pdb_where_command():
"""Test where command

>>> def g():
... import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()

>>> def f():
... g();

>>> def test_function():
... f()

>>> with PdbTestInput([ # doctest: +ELLIPSIS
... 'w',
... 'where',
... 'u',
... 'w',
... 'continue',
... ]):
... test_function()
--Return--
> <doctest test.test_pdb.test_pdb_where_command[0]>(2)g()->None
-> import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
(Pdb) w
...
<doctest test.test_pdb.test_pdb_where_command[3]>(8)<module>()
-> test_function()
<doctest test.test_pdb.test_pdb_where_command[2]>(2)test_function()
-> f()
<doctest test.test_pdb.test_pdb_where_command[1]>(2)f()
-> g();
> <doctest test.test_pdb.test_pdb_where_command[0]>(2)g()->None
-> import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
(Pdb) where
...
<doctest test.test_pdb.test_pdb_where_command[3]>(8)<module>()
-> test_function()
<doctest test.test_pdb.test_pdb_where_command[2]>(2)test_function()
-> f()
<doctest test.test_pdb.test_pdb_where_command[1]>(2)f()
-> g();
> <doctest test.test_pdb.test_pdb_where_command[0]>(2)g()->None
-> import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
(Pdb) u
> <doctest test.test_pdb.test_pdb_where_command[1]>(2)f()
-> g();
(Pdb) w
...
<doctest test.test_pdb.test_pdb_where_command[3]>(8)<module>()
-> test_function()
<doctest test.test_pdb.test_pdb_where_command[2]>(2)test_function()
-> f()
> <doctest test.test_pdb.test_pdb_where_command[1]>(2)f()
-> g();
<doctest test.test_pdb.test_pdb_where_command[0]>(2)g()->None
-> import pdb; pdb.Pdb(nosigint=True, readrc=False).set_trace()
(Pdb) continue
"""

def test_post_mortem():
"""Test post mortem traceback debugging.

Expand Down
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Tests/2023-03-23-23-25-18.gh-issue-102980.Zps4QF.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Improve test coverage on :mod:`pdb`.